The metadata below describe the original scanning. Follow the "All Files: HTTP" link in the "View the book" box to the left to find XML files that contain more metadata about the original images and the derived formats (OCR results, PDF etc.). See also the What is the directory structure for the texts? FAQ for information about file content and naming conventions.
"Memoirs of Christian von Ompteda ... edited by his grand-nephew, Baron Louis von Ompteda, who has made use, for that purpose, primarily of the letters and diaries of his grand-uncle, and the personal literary remains of the late Baron Louis, Christian's brother."--Pref